permanent waves
美 [ˈpɜːrmənənt weɪvz]英 [ˈpɜːmənənt weɪvz]
- n.烫发;卷发;同 perm
- permanent wave的复数
permanent waves-
Series Solution of Permanent Waves of Boussinesq Equation
Boussinesq方程的永形波的级数解
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Our products include shampoos , conditioners and permanent waves , along with finishing and hair treatment products .
我们的产品包括洗发精，调节者和长备的波，连同终结和头发治疗产品一起。
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Driving Circuit of Flow Permanent and Cut Waves Stepper Motor Using TRC to Control the Voltage of Power
采用TRC控制电源电压的恒流斩波步进电机驱动电路
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A kind of driving circuit of the stepper motor adopting permanent flow and cut waves technology was introduced , for which TRC was used to control the voltage of power in order to improve the frequencies characteristic of stepper motor .
介绍一种采用了恒流斩波技术的步进电机驱动电路，该电路的电源电压使用TRC（TimeRationControl）控制来改善步进电机的频率特性；